Regular period after taking i-pill. Pain in the abdomen. Am I pregnant?


Hello Doctor,
These are the details:
Last Period: 8th January 2014
Bleeding stopped on: 14th January 2014
Had unprotected sex on: 2nd February 2014
Took i-pill after one hour
Next Period: 9th February 2014

My partner did not ejaculate. The intercourse did not last too long either. I also have PCOD. My periods aren't usually painful, except on the 2nd day. But now it has been paining for 4 days. Please advise me on this.

Also, I do understand that the chances of getting pregnant are very low. But I am very anxious. I cannot go for a blood test. Would a pregnancy test kit be accurate enough? And which one should I use and when?

Thank you